Thomas haycock



VUNITED STATES PATENT OFFICE.

THOMAS MAYCOCK, OF BUFFALO, NEW YORK, ASSIGNOR TO HIMSELF AND HENRY RICE.

DRAIN-TILE MACHINE.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, THoMAs MAYoocK, of Bu'alo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Machines for Making Drain-Tiles, which I have described in the following specification and illustrated in the accompanying drawings with suiiicient clear-ness to enable others of competentskill to make and use my invention.

My invention consists in a device hereinafter described for reducing the adhesion of the plunger, thus facilitating its removal to lill the machine.

In the accompanying drawings Figure l is aperspective view of my improved machine. Fig. 2 is a sectional elevation showing the method of attaching the cylinder and the device for reducing the adhesion of the plunger.

A is the frame of the machine.

B is the die, and C is a cast iron box which holds the die, and to the top of which the cylinder D is detachably attached. The die box is attached to the frame by the hook E screwed down upon a bar which forms a part of the die boX. A piece of wood F lits the back lower corner of the box, and turns the clay forward toward the die. A cylindrical iiange rises from the top of this box to receive the cylinder D, the lower part of the cylinder fitting into the iange sutliciently loosely to be easily removed and replaced. Into this cylinder D, an annular ring I is fitted but not so closely but that it may be easily taken out and put in. The proportions of this ring are about as shown in Fig. 2.

The follower or plunger Gr is made con siderably smaller than the cylinder, as shown in the drawings, but not so small as not to cover with certainty the opening in the ring I. The to-p of this plunger is fastened to the cross head H, which is guided 16,035, dated November 4, 1856.

by slides J. Two battens K are put upon this cross head to keep it from splitting, and to these the chains L are attached. These chains L extend down to the capstan M, and by turning this capstan the plunger is forced down upon the clay. y

N is a rope or cord attached to the cross head I-I for raising the plungerl when necessary.

The advantages of these improvements are as follows: By making the cylinder D detachable in the manner described, the operation of lling is greatly facilitated, and by having two cylinders, an attendant may be filling one while the principal operator is working off the other, and by this arrangement the machine only need be stopped to change the cylinders. If the plunger is made to fit the cylinder without the ring I, the great adhesion of the clay will offer too much resistanceto withdrawing the plunger, and this adhesion would be assisted by the atmospheric pressure, as the clay fitting closely to the sides of the bot tom of the plunger would prevent the atmosphere from getting under it. In this arrangement |the plunger is removed with lnuch greater ease, and then the ring can be readily taken out by the hand of the workman, the opening made by his fingers in the clay as he grasps the ring being sufficient to admit the air at once.

I claim-- The combination of the annular ring I, with vthe plunger-(the latter having a smaller diameter than the ring) and cylinder, constructed, arranged, and operating substantially in the manner and for the purpose set forth.

THOMAS MAYOOCK.

Vitnesses CHAS. W. THOMPSON, THos. P. How. 

